http://forums.w5j6stm77zs6652pgsij4awcjeel3eco7kvipheu6mtr623eyyehj4yd.onion/t/error-storing-passphrase-in-keyring-the-name-org-freedesktop-secrets-was-not-provided-by-any-service-files/582
This would inform KeePassXC that it is being used as the default secret service for this user account. This would trigger it to enable the secret service feature, automatically create a properly secured secret storage database if necessary, and then stay running so that it can provide secret management features (and also work as a password manager if the user desires).